nbc's education correspondent rehema ellis is in chicago with more. good morning, raheema. >> reporter: good morning, natalie. 98% of the teacher delegates voted to suspend the strike and go back to class in the nation's third largest school district. it still has to be ratified by the 30,000 members of the rank and file in a couple of weeks, but that's a formality and that heads off a confrontation with chicago's mayor who threatened to go to course to force an end to the strike the under theters of the new contract the teachers get a 7% pay increase, 30% of their salary will be based on students' performance on test scores, and while principals will make hiring, 50% of the hirings have to come from laid-off teachers. today kids back in class in chicago much to the relief of their parents. natalie? >> much relief there. rehema ellis in chicago, thanks. >>> nbc kicks off its third annual education nation summit this sunday. we'll have full coverage here on nbc, and can you stream it all live on educationnation.com. >>> a tiny ancient scrap of papyrus